Raysid App and firmware changelog: https://raysid.com/changelog.txt

Beta 29.04.2024 App v.1.3.0n Firmware v1.4.9076
New features:
1) spectrum file format .n42/xml
2) spectrum foreground/background load/save/share/open with/add to a lib
3) spectrum pause/resume
4) spectrum limit by time and/or counts, delayed start
5) new identification based on library
6) stats of detected peaks
7) customizable libraries of spectrums
8) import/export of libraries 
9) identified peak names
10) limit of 65000 counts per channel increased in 256 times (~16*10^6)
11) Log/Lin scale for spectrum
12) Log/Lin scale for bars. Red bars removed.
13) app starts with last opened tab
14) export/import (backups) of all app's data: map, log, library and settings (in the About menu)
15) Fast spectrum sync (~1s for 1800 channels)
16) Fast log events sync
17) Speed limit of 250km/h (only for the global map)
Bugfixes:
18) bugfix: endless sync after removing a hot source
19) bugfix: "Press to stop" (in notification) didnt work when bluetooth was disabled
20) bugfix: font sizes

29.03.2024 App v.1.2.10v Firmware v1.4.8739
1. Bugfix: spectrum visual artifact when counts per channel >6000. Actual for firmware versions >1.4.8920

26.03.2024 App v.1.2.10u Firmware v1.4.8739
1. Bugfix: (CPS grow after spectrum reset) for raysids with firmware >1.4.8920
2. Bugfix: background process crashes

19.01.2024 App v.1.2.10r Firmware v1.4.8739
1. Fixed Bluetooth reconnection issues on some Samsung phones
2. Fixed reconnection issues for BT-modules 1.4x.x (Raysids 09XX, 67XX, and some others)
3. Fixed connection timeouts during map building in notifications
4. Fixed the issue with the number of days in accumulated dose (caused by several app/Raysid restarts)
5. Fixed crashes of background process
6. Fixed reconnection after BT disable/enable
7. Fixed noise filter problem at very low cps
8. Include current date/time in file names
9. Additional values for "Extension"
10. Location log (CSV files) in Documents folder (can be activated in settings)
11. Implemented on-demand permission requests
12. Replaced "24/7" with an "Enable Map Building" button
13. Enhanced notification status information
14. Bluetooth can now remain connected constantly ("App Running 24/7" = Enabled, "Bluetooth Usage Optimization" = Disabled)
15. Rearranged settings menu
16. More stable map building in the background mode
17. Faster settings synchronization
18. New behavior while overloaded (fast reaction)
19. Automatic switching (when reached) to mSv/h or mR/h
20. New sound in "cps overloaded" mode
21. New dose rate limit: 1 mSv/h


04.04.2023 App v.1.2.7f  Firmware v1.3.7034
1. Faster Bluetooth connection ("Bluetooth Connection" option in settings)
2. Increased Bluetooth TX power for early raysids (more stable connection)
3. Android 13 "reconnecting" fix (on some Samsung models)
4. bugfix: possible fix for endless spectrum sync
5. bugfix: random height of last spectrum bar after spectrum reset (while syncing)

14.12.2022 App v.1.2.6t  Firmware v1.2.6615
1. Android 13 compatibility
2. Firmware and app compatibility with newer hardware
3. More values in "Clicks Scale"
4. More values in "Spectrum Calibration"
5. Fixed "Raysid bluetooth scanning" notification after About->Disconnect
6. Minor changes.

23.09.2022 App v.1.2.5x  Firmware v1.2.6485
1) bugfix: unexpected doserate spike
2) bugfix: no more multiple app instances (lots of unexpected bugs)
3) updated BT-connection/reconnection algo
4) changed Back button behavior
5) crashfix (not allowed background service)

01.08.2022 App v.1.2.5j  Firmware v1.2.6447
1) bugfix: rare message "Update in progress 5888/0"
2) bugfix: endless spectrum sync

28.07.2022 Beta App v.1.2.5h  Firmware v1.2.6442
1) bugfix: spectrum synchronization
2) bugfix: duplicate log entries

23.07.2022 App v.1.2.5g  Firmware v1.2.6442
1) update of the transfer protocol for all transmitted data by Bluetooth. This should eliminate most of crashes and other abnormal behavior
2) fixed: "Update in progress xxxx/0"
3) fixed: big readings right after switching on
4) fixed: rare "negative spikes" in CPS or doserate graphs
5) a bit faster spectrum synchronization
6) minor fixes

13.07.2022 App v1.2.4f  Firmware v1.2.6350
1) bugfix: displaying and removing of duplicate log entries
2) data transfer protocol updates (more strict checksums). Possible fix of rare unexpected spikes in CPS and dose rate.
3) less lost data packets
4) minor fixes

20.11.2021   App v1.2.3b  Firmware v1.2.5777
1) New click sounds (SETS->Clicks->"Sound Clicks Type").
2) Clicks on Android device (SETS->Clicks->"Sound Clicks - Android").
3) BugFix: raysid click delays when device starts
4) Lu176 added to the library
5) Smartphone's vibro-motor and ringtones in background process (when App is not active)
6) Disabled smartphone's vibro-motor alarm while camera is active
7) Displaying >20k CPS and >0.2k uSv/h while overloaded
8) minor bugfixes

23.09.2021   App v1.2.2  Firmware v1.2.5652
1) New map points will save maximum measured values instead of average.
2) Co60 added to the library

18.09.2021   App v1.2.1a  Firmware v1.2.5652
1) Fixed doserate/cps delay when switching energy ranges

17.09.2021   App v1.2.1  Firmware v1.1.5647
1) Increased spectrum energy ranges
2) Better peak detection algorithm
3) Adjusted sensor-sensitivity compensation
4) Adjusted Cs137 activity measurement

10.05.2021  App v1.1.18a  Firmware v1.1.5158
1) several bugfixes in the app and firmware

05.05.2021  App v1.1.17b  Firmware v1.1.5156
1) CPS and doserate formulas have minor changes: 
    a) fixed unexpected small spikes (mistake in math)
    b) less aplitude of graphs in "SRCH" tab
2) SETS -> "Sensivity/Accuracy" now have 3 options (4 was too many)
3) Taking photo/video: buttons moved to the black area in 16:9 mode
4) Removed "requestLegacyExternalStorage" flag - required by new Google Play rules.

29.04.2021  App v1.1.16  Firmware v1.1.5097
1) CrashFix: during spectrum synchronization (Android 10; Galaxy S9+)
2) Minor changes in doserate formula to prevent sudden spikes

28.04.2021  App v1.1.15  Firmware v1.1.5096
1) Notification alarm displays highest registered values
2) CrashFix: when trying to send points to the server (found on Android 6; HUAWEI H60-L04)
3) CrashFix: when Bluetooth scan is finished (found on Android 5,10; Google Pixel,Samsung Galaxy J1)

25.04.2021  App v1.1.14b  Firmware v1.1.5096
1) New feature: Alarms in Android notifications
2) Fix: "Led-only" alarms are available now. "Enable Clicks on Alarm" renamed to "Clicks"

16.04.2021 v1.1.13
1) New feature: spectrum export to CSV

06.04.2021 v1.1.12a
1) Bugfix: Auto spectrum restart button state 
2) Bugfix: crash on start

31.03.2021 v1.1.12
1) Bugfix: activity recognition permission in Android 7,8

30.03.2021 v1.1.11b
1) New feature: spectrum auto restart / sensitive dose rate grow signal 
2) Minor bugfixes

27.03.2021 v1.1.10a
1) CPS/Dose rate accuracy value is based on 2-sigma formula

26.03.2021 v1.1.10
1) CPS/Dose rate accuracy value is based on 3-sigma formula

25.03.2021 v1.1.9
1) bugfix: Zoom reset button while taking photo/video

24.03.2021 v1.1.8d
1) Crashfix on taking picture/video on POCO X3
2) Crashfix on first start
3) Global track button color on first start)

17.02.2021 v1.1.7
1) "Spectrum Calibration -> Extention" added values upto +10%

14.02.2021  v1.1.6
1) Bugfix: accumulated dose x100
2) Server keys update / global map fix
3) Bugfix: crash when connecting after device search

15.01.2021
1) New "map points removal"
2) Fixed/decreased sudden spikes in doserate graph (in High & Medium Sensivity modes)

23.11.2020
1) User spectrum calibration
2) Minor bugfixes

06.11.2020
1) Bugfixes in notification and GPS status

02.11.2020
1) Better/faster spectrum synchronization
2) "LOG" has a red badge with number of new events
3) BUGFIX: Shorter notification + several bugs fixed (Bluetooth/GPS ON/OFF)
4) BUGFIX: big numbers of CPM
5) BUGFIX: scale in "event view" page
6) minor changes in design

30.10.2020
1) CPM

29.10.2020
1) new setting: "Enable Map Building"
2) new setting: "GPS usage optimization" 
3) new setting: "Close Inactive App"
4) setting "Run in background" renamed to "Always Running"
5) added "Press to stop" to notification 

22.10.2020
1) bugfix: app's data flickering in camera preview
2) darker background for spectrum data
3) font with shadow for CPS and Doserate

21.10.2020
1) Increased upper limit ~30kCPS and ~200uSv/h
2) CPS and Doserate sensitivity update. All modes became more sensitive.
3) Completely new camera engine. Rotation bugs fixed. Design changes.
4) Design changes in spectrum tab

06.10.2020
1) camera improvements (new buttons)
2) BG spectrum height fix

03.10.2020 bugfixes & changes:
1) camera in both modes: landscape and portrait
2) minor fixes

02.10.2020 bugfixes & changes:
1) "BG button" when taking photo/video
2) completely new camera processing 

29.09.2020 bugfixes & changes:
1) press on "SETS" closes any submenu (goes to main settings menu)
2) added "saveBackground" button in the SPEC tab
3) added "Enable/Disable Background" button in the SRCH tab

28.09.2020 bugfixes & minor changes:
1) font oversize in "Log" tab
2) "ticks" => "clicks", "sound" => "alarm sound"
3) press on "LOG" => closes detailed view and shows log list
4) change colors of CPS and uSv/h
5) yellow text on yellow spectrum. Text color changed to blue